Wild Kratts"Mimic"
While exploring why some animals mimic the looks of others, Martin and Chris encounter a cheetah cub and its mom. But before they know it, evil fashion designer, Donita Donata, 'cat-naps' the startled mom right in front of their eyes. The Wild Kratts team springs into action on a rescue mission before Donita adds the momma cheetah to her new fall line. D

3:30 pm

Cyberchase"All The Right Angles"
Motherboard mistakenly sends a treasure map to Hacker. The treasure is the secret to the legendary cyber-pirate Ivanka the Invincible's invincibility. If Hacker finds it, cyberspace is doomed! To help Motherboard, the kids must find the secret treasure before Hacker does, and use their skill with angles to read the strange map that contains only riddles about twists and turns. D

4:00 pm

Fetch! With Ruff Ruffman"Will They Like The Show? It's A Shoe-In!"
DJ and Sammy head to a sneaker company to design and build more functional footwear while Jay and Sam learn the art of street performing. D

4:30 pm

Arthur"Big Horns George/Bleep"
Big Horns George - Koko Taylor and Taj Mahal guest-star in this episode celebrating "The Year of The Blues." George is inspired to write and perform his own blues song when he's introduced to the music of Koko Taylor. But stage fright and self-doubt overwhelm him . D

5:00 pm

The Electric Company"Off Target"
A neighborhood kid, Marcus Barnes, has just found out he has the wordball power.well, kind of. The Electric Company tries to help Marcus improve his wordball throwing skills so he can join them. D

Nature"Siberian Tiger Quest"
NATURE begins its 31st season with conservation ecologist Chris Morgan ("Bears of the Last Frontier") seeking to fulfill a longtime dream - to find and film a Siberian tiger in Russia's far eastern forests. The film features the work of Korean cameraman Sooyong Park, the first to film Siberian tigers in the wild. Park's unconventional tracking technique has produced thousands of hours of footage. Morgan learns firsthand from Park just how hard it is to achieve.G

8:00 pm

NOVA"Secrets of the Viking Sword"
The Ulfberht sword of the Vikings is a revolutionary high-tech tool of its day, a work of art and considered to be one of the greatest swords ever made. NOVA uses cutting-edge science and old-fashioned detective work to reconstruct the Ulfberht and unravel its mystery.G

9:00 pm

NOVA scienceNOW"What Makes Us Human?"
New host David Pogue, technology reporter for the New York Times opens the new season by exploring traits once thought to be uniquely human - language, toolmaking, laughter - to uncover their evolutionary roots. He traces some of the crucial steps that transformed cave men to accountants. His investigations lead him to learn how much of his own DNA comes from a Neanderthal ancestor.G

10:00 pm

Hustle
Albert decides it is time for a break as he leaves for time in his favorite casinos. "Liability" Finch, an old friend of Ash's, shows up wanting help with a Van Gogh he has acquired. Mickey tells him it is too risky. The Head of Customs appears with his own proposal that puts the team in a very tight spot, so Sean tries to take matters into his own hands.G